Head mounted display device



FIG. 1 is a perspective view of a head mounted display device showingour new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a left side view thereof, showing the article in a position ofuse; and,

FIG. 9 is a top plan view showing a portion of the article shaded astransparent.

The broken lines are just for illustrative purposes only and form nopart of the claimed design.

CLAIM The ornamental design for a head mounted display device, as shownand described.